OPERATOR'S MANUAL 46" SNOW BLADE Model Numbers 190-833-OEM IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722 PRINTED IN U.S.A. FORM NO. 48829 (REV. 7/03)
RULES FOR SAFE OPERATION Any power equipment can cause injury if operated improperly or if the user does not understand how to operate the equipment. Exercise caution at all times when operating equipment. 1. Read the tractor and snow blade owners manuals and know how to operate your tractor before using tractor with snow blade attachment. 2. Never operate tractor and snow blade without wearing proper clothing suited to weather conditions and operation of controls. 3. Never allow children to operate tractor and snow blade, and do not allow adults to operate without proper instructions. 4. Always begin with transmission in first (low) gear and gradually increase speed as required. LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT SAFETY PRECAUTIONS. IT MEANS -- ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED. UNPACKING Open carton. Remove parts and literature. Make certain all parts and literature are removed before the carton is discarded. Lay out all parts according to the illustration below. CARTON CONTENTS A 2 Frame Brackets B 1 Upper Lift Handle C 1 Lower Lift Handle Assembly D 1 Blade Assembly E 1 R.H. Hitch Bracket F 1 L.H. Hitch Bracket G 2 Angle Brackets H 1 Pivot Support Bracket I 1 Channel Pivot Pin J 1 Angle Lock Bar (Long) K 1 Angle Lock Bar (Short) L 1 Channel Assembly M 1 Pivot Shaft N 1 Spring Mount Rod O 1 Blade Adjust Spring A B C D J K E F G L H I N M O 2
SHOWN FULL SIZE A B C D E F G L K J I H M N O P S T R Q NOT SHOWN FULL SIZE U V W X Y CONTENTS OF HARDWARE PACK Key Qty Description A 1 Hex Bolt, 3/8" x 3-1/2" B 1 Hex Bolt, 1/4" x 3-1/4" C 8 Hex Bolt, 3/8" x 1" Lg. D 6 Hex Bolt, 5/16" x 1" Lg. E 2 Hex Bolt, 1/4" x 1" F 2 Carriage Bolt, 3/8" x 1" Lg. G 2 Shoulder Bolt H 3 Hex Lock Nut, 1/4" I 6 Nylock Nut, 5/16" J 1 Hex Nut, 3/8-16 K 4 Hex Lock Nut, 3/8" L 8 Flange Nut, 3/8" M 4 Lock Washer, 5/16" Key Qty Description N 2 Lock Washer, 3/8" O 1 Flat Washer, 3/8" P 1 Flat Washer, 1/2" Q 2 Hairpin Cotter, 1/8" (large) R 3 Hairpin Cotter, 3/32" (small) S 2 Palnut, 3/8" T 1 Clevis Pin, 1/4" x 1-1/2" U 2 Spacer V 1 Plastic Cap W 1 Angle Lock Spring X 1 Knob Y 1 Handle Grip 3
SECTION 1: ASSEMBLY INSTRUCTIONS NOTE: Right hand (R.H.) and left hand (L.H.) are determined from the operators position while seated on the tractor. TOOLS REQUIRED FOR ASSEMBLY (2) 7/16" Wrenches (2) 1/2" Wrenches (2) 9/16" Wrenches (1) 3/4" Wrench or Adjustable Wrench REMOVING PARTS FROM CARTON ASSEMBLING BRACKETS TO TRACTOR FAST-ATTACH TRACTOR FRAMES No bracket assembly required. Skip to ASSEMBLING THE SNOW BLADE. STANDARD TRACTOR FRAMES WITH 15" TIRES 6. Attach a frame bracket to each side of the tractor frame. Assemble three 5/16" x 1" hex bolts and 5/16" nylock nuts to the holes shown figure 1. 7. Assemble a shoulder bolt and a 3/8" hex lock nut to the upper hole in each frame bracket as shown in figure 1. 5/16" NYLOCK NUTS Remove all parts and hardware packages from the carton. Lay out all parts and hardware and identify using the illustrations on pages 2 and 3. NOTE: Not all parts in the hardware pack will be needed for any one tractor fit-up. PREPARING THE LAWN TRACTOR 5/16" x 1" HEX BOLTS 3/8" HEX LOCK NUT CAUTION: Before beginning preparation, select a firm and level surface which is large enough to accommodate the snow blade attachment and tractor. Engage brake lock. WARNING: Stop engine and let muffler cool before installing brackets. 1. Allow engine, muffler and exhaust deflector to cool before beginning. 2. Disconnect the spark plug wire(s) from the spark plug(s) and ground against the engine. 3. Remove the mowing deck as instructed in the belt removal section of the owner's manual for the lawn tractor. SHOULDER BOLT Figure 1 STANDARD TRACTOR FRAMES WITH 16" TIRES 8. Attach a frame bracket to each side of the tractor frame. Use two 5/16" x 1" hex bolts and 5/16" lock washers in the holes shown in front of the axle. Use a 1/4" x 1" hex bolt and 1/4" hex lock nut in the rear hole as shown. Tighten carefully to avoid stripping threads in tractor frame. See figure 2. 9. Assemble a shoulder bolt and a 3/8" hex lock nut to the lower hole in each frame bracket as shown in figure 2. 1/4" x 1" HEX BOLT 1/4" HEX LOCK NUT REMOVING PARTS FROM TRACTOR 4. Remove any front mounted attachments which may be installed on your tractor. 5. Mark and save all removed parts. 5/16" x 1" HEX BOLTS 5/16" LOCK WASHERS 3/8" HEX LOCK NUT SHOULDER BOLT 4 Figure 2
ASSEMBLING THE SNOW BLADE 10. Assemble the long and short angle lock bars together using two 3/8" x 1" carriage bolts, 3/8" lock washers and 3/8" hex lock nuts. Make sure all holes are aligned. See figure 3. 14.Using a hammer, assemble a 3/8" palnut onto one end of the spring mount rod. Insert the other end of the rod through the rear set of holes in the pivot plate. Turn the pivot plate onto it's side on a block of wood and hammer the remaining palnut onto the other end of the rod. See figure 5. 11. Insert the straight hook end the angle lock spring into the middle hole in the angle lock bars. The curved hook on the other end of the spring should be facing up. See figure 3. 3/8" x 1" CARRIAGE BOLT ANGLE LOCK BAR (LONG) ANGLE LOCK BAR (SHORT) 3/8" LOCK WASHER 3/8" HEX LOCK NUT ANGLE LOCK SPRING 3/8" PALNUT SPRING MOUNT ROD PIVOT PLATE 3/8" PALNUT Figure 3 Figure 5 12.Insert the curved hook of the angle lock spring up through the hole in bracket (A). See figure 4. 13.Insert the angle lock bars down through the slot in the channel. Underneath the channel place spacers on both sides of the angle lock bars and insert a 1/4" x 3-1/4" hex bolt through the sides of the channel, the spacers and the angle lock bars. Secure the bolt with a 1/4" hex lock nut, tightening so that the angle lock bars still pivot freely. See figure 4. 15.Insert the 3/8" x 3-1/2" hex bolt through the angle lock spring. Assemble a 3/8" hex nut about 1" onto the end of the bolt. See figure 6. 3/8" HEX NUT PIVOT PLATE BRACKET (A) CHANNEL 1/4" HEX LOCK NUT ANGLE LOCK SPRING 3/8" x 3-1/2" HEX BOLT BLADE ADJUST SPRING 1" SPACERS (2) 1/4" x 3-1/4" HEX BOLT Figure 6 Figure 4 5
16.To attach the channel assembly to the blade, align the pivot plate between the welded brackets on the back of the blade. Insert the pivot shaft through the holes in the pivot plate and the welded brackets. Secure the pivot shaft with two 1/8" hair cotter pins. See figure 7. 17.Hook the blade adjust spring over the spring mount rod as shown. Insert the bolt through the hole at the top of the blade and assemble the 3/8" flat washer and the knob onto the bolt. Turn the knob until it is tight. Place the plastic cap over the end of the bolt. See figure 7. NOTE: The blade is now set at the lowest spring tension. To adjust the tension see the Adjustments section. 1/8" HAIR COTTER PIN PIVOT SHAFT SPRING MOUNT ROD PIVOT PLATE BLADE ADJUST SPRING Figure 7 3/8" HEX NUT PLASTIC CAP KNOB 3/8" FLAT WASHER 3/8" x 3-1/2" HEX BOLT HAIRPIN CLIP BLADE 18.Arrange the angle support brackets as shown in figure 8. Assemble the angle support brackets to the pivot support bracket using four 3/8" x 1" hex bolts and 3/8" flanged nuts. 19.Assemble the R.H. and L.H. hitch brackets to the angle support brackets using four 3/8" x 1" hex bolts and 3/8" flanged nuts. See figure 9. 3/8" x 1" HEX BOLT 3/8" FLANGED NUT Figure 9 20.Attach the channel assembly to the tractor by placing the end of the channel inside the pivot support bracket. Assemble the 1/2" flat washer onto the channel pivot pin and insert the pin through the holes in the pivot support bracket and the channel. Secure with a 3/32" hair cotter pin. See figure 10. CHANNEL ASSEMBLY 3/32" HAIR COTTER PIN PIVOT SUPPORT BRACKET 3/8" FLANGED NUT 3/8" x 1" HEX BOLT WASHER CHANNEL PIVOT PIN Figure 10 Figure 8 6
21.Insert the end of the lower lift handle assembly through the notch in the pivot support bracket and through the holes in the channel. Align the lift link pin with the hole in the welded bracket on the lower lift handle assembly. Insert the lift link pin through the hole in the bracket and secure it with a 3/32" hair cotter pin. See figure 11. 3/32" HAIR COTTER PIN ATTACHING SNOW BLADE TO TRACTOR QUICK ATTACH TRACTOR FRAMES 24.Pull out on the hitch assembly's attachment pins and swing the pins down away from the holes they were in. See figure 13. 25.Hook the hitch assembly onto the shoulder bolts in the tractor frame. See figure 13. 26.Align the holes in the hitch assembly with the holes in the tractor frame. Insert the attachment pins to lock the hitch assembly in place. See figure 13. WELDED BRACKET LIFT LINK PIN ATTACHMENT PIN SHOULDER BOLT CHANNEL LOWER LIFT HANDLE ASSEMBLY Figure 13 Figure 11 22.Assemble the handle grip onto the upper lift handle. See figure 12. 23.Place the upper lift handle onto the lower lift handle assembly. Align the holes and secure with the clevis pin and a 3/32" hair cotter pin. See figure 12. STANDARD TRACTOR FRAMES 27.To attach the hitch assembly to the front of the tractor, pull out on the attachment pins and swing the pins down away from the holes they were in. See figure 14. 28.Hook the hitch assembly onto the shoulder bolts assembled to the frame brackets. See figure 14. 29.Align the holes in the hitch assembly with the holes in the frame brackets. Insert the attachment pins to lock the hitch assembly in place. See figure 14. PIN IN THIS HOLE FOR 15" TIRES HANDLE GRIP UPPER LIFT HANDLE CLEVIS PIN ATTACHMENT PIN SHOULDER BOLT 3/32" HAIR COTTER PIN PIN IN THIS HOLE FOR 16" TIRES LOWER LIFT HANDLE ASSEMBLY Figure 12 ATTACHMENT PIN SHOULDER BOLT 7 Figure 14
SECTION 2: OPERATING THE BLADE CAUTION: Inspect the area to be worked carefully before operating the snow blade. Avoid pipes, roots, curbs or other heavy obstructions. The lift handle, located on the left side of the snow blade, is used to raise and lower the blade. Pulling the lift handle all the way back raises the snow blade. Move the lift handle forward to lower the snow blade to the ground. The angle of the blade can be adjusted to the right or left by pulling back on the angle lock bar, shown in figure 15, and repositioning the head of the blade to the right, left or center. ANGLE LOCK BAR SECTION 3: ADJUSTMENTS To Adjust Blade Spring The blade adjust spring allows the blade to tilt forward to bypass solid obstructions. The normal adjustment is for the spring bolt to extend 1" through the top of the blade. To increase the spring tension loosen the knob, screw the nut farther down onto the bolt and then retighten the knob. To decrease the spring tension loosen the knob, screw the nut farther out toward the end of the bolt and then retighten the knob. Refer to figure 8 on page 6. To Adjust Skid Shoes The skid shoes at the ends of blade may be raised for close work on smooth surfaces or lowered to raise the blade to work on rough or uneven areas. Make sure both shoes are set evenly and that the nuts are retightened securely. Figure 15 CAUTION: Know the terrain. Avoid exceptionally sharp slopes or drop offs which may be hidden by the snow. Never run the snow blade into heavy material at high speed. Always begin with the engine speed at the lowest possible setting, and gradually increase speed as required. When working in a large area, do not attempt to move the snow or dirt all in the same direction, causing an excessive buildup, which would become larger with each pass. CAUTION: Always lower blade to ground before leaving tractor. 8
NOTES 9
29 25 47 28 36 9 9 30 47 46 24 17 37 50 35 14 31 44 15 43 26 11 25 49 33 51 13 48 52 12 10 19 24 3 34 35 21 6 18 8 38 20 6 4 7 6 1 2 4 5 4 REPAIR PARTS LIST FOR MODELS 190-833-OEM 46" SNOW BLADE 22 32 27 C B C B A A 40 23 25 39 42 41 16 57 48 56 43 56 55 58 54 55 16 57 45 53 10
REPAIR PARTS LIST FOR MODEL 190-833-OEM 46" SNOW BLADE REF. PART QTY. DESCRIPTION NO. NO. REF. PART QTY. DESCRIPTION NO. NO. 1 63821 1 Blade - 46" 2 24524 1 Wear Plate - 46" 3 62980 1 Reinforcement Plate Assembly 4 43080 8 Bolt, Carriage 5/16-18 x 3/4" 5 44326 2 Bolt, Carriage 5/16-18 x 1" 6 43064 14 Hex Lock Nut, 5/16-18 Thread 7 43081 4 Washer, 5/16" 8 24690 2 Skid Shoe 9 24520 2 Bracket, Angle Support 10 24347 1 Push Channel 11 43262 1 Hex Lock Nut, 1/2-13 Thread 12 23131 1 Bolt, Special Pivot 13 1540-118 1 Washer, Flat 1/2" 14 23958 1 Plate, Pivot 7 Ga. 15 23130 1 Bracket, Spring Mt. 16 47572 8 Flanged Lock Nut, 3/8-16 Thread 17 23122 1 Shaft, Pivot 18 43070 1 Washer, 3/8" STD. 19 9466R 1 Spring, Blade Adjust 20 44071 1 Hex Bolt, 3/8-16 x 3-1/2" 21 43015 1 Hex Nut, 3/8-16 Thread 22 44074 1 Plastic Cap 23 41-42 1 Pin, Clevis 1/4" x 1-1/2" 24 43343 2 Pin, Hair Cotter #4 (1/8") 25 43055 3 Pin, Hair Cotter #3 (3/32") 26 46053 2 Spacer,.28 ID x 1" 27 63283 1 Lift Handle Assembly, Lower 28 24518 1 Hitch Bracket, R.H. 29 24519 1 Hitch Bracket, L.H. 30 24023 1 Pivot Support Bracket 31 23129 1 Angle Lock Bar (Long) 32 46553 1 Lift Handle, Upper 33 23151 1 Angle Lock Bar (Short) 34 23856 1 Spring Mount Rod 35 44917 2 Palnut, 3/8" 36 43010 1 Cotter Pin 1/8" x 1" 37 43348 1 Angle Lock Spring 38 47501 1 Knob 39 47553 2 Pin, Attachment 40 43362 1 Handle, Grip 41 732-3127 2 Spring, Compression 42 43659 2 Pin, Spring 3/16" x 1" 43 43013 3 Hex Lock Nut, 1/4-20 Thread 44 43350 2 Carriage Bolt, 3/8-16 x 1" 45 46065 1 Channel Pivot Pin 46 63034 1 Lift Link Assembly 47 43001 8 Hex Bolt, 3/8-16 x 1" 48 43082 4 Hex Lock Nut, 3/8-16 Thread 49 43003 2 Lock Washer 3/8" 50 R19171616 1 Washer 51 46071 1 Hex Bolt, 1/4-20 x 3-1/4" Lg. Gr 5 52 43349 1 1/4" x 1" Spring Pin 53 48106 2 Shoulder Bolt, 3/8-16 x 1/2" 54 43661 2 Hex Bolt, 1/4-20 x 1" 55 43063 6 Hex Bolt, 5/16-18 x 1" 56 47810 6 Hex Nut, 5/16-18 Nylock 57 24932 2 Frame Bracket 58 43086 4 Lock Washer, 5/16" 48829 1 Owners Manual 11
If you are having difficulty assembling this product or if you have any question regarding the controls, operation or maintenance of this unit, please call the Customer Support Department. You can reach them by calling: 1-800-800-7310